Gas-cock-operating device.



B. JENKINS.

GAS COOK OPERATING DEVICE.

APPLICATION FILED 0019,1913.

1,097,441 v Patented May 19, 1914.

3 swam Q mom CCCCCCCC PLANOGRAPH co WASHINGTON I)v c.

BENJAMIN JENKINS, OF WASHINGTON, DISTRICT OF COLUMBIA.

GAS-COCK-OPERA'IING DEVICE.

Specification of Letters Patent.

Application filed October 9, 1913.

Patented May 19, 1914.

Serial No. 794,268.

To all whom it may concern Be it known that I, BENJAMIN JENKINS, a citizen of the United States, residing at l/Vashington, in the District of Columbia, have invented certain new and useful Improvements in Gas-Cock-Operating Devices, of which the following is a specification.

This invention relates to operating devices for gas cocks whereby the gas is turned on or off by simply pulling down on a depending chain, cord or the like.

It is the object of the present invention to provide a simple and efficient operating device of the kind stated, and also one which can be readily applied to any ordinary gas cook without altering or modifying the structure thereof, and to this end the invention consists in a novel combination and arrangement of parts to be hereinafter described and claimed.

In order that the invention may be readily understood, reference is had to the accompanying drawing, forming a part of this specification, in which drawing,

Figure 1 is an elevation showing the device in position on the gas cock; Fig. 2 is a vertical section on the line 22 of Fig. 1; Fig. 3 is a plan view of the device, with the top of the housing removed, and Fig. 4 is an inverted plan View thereof.

Referring specifically to the drawing 5 denotes the casing of an ordinary gas cook provided with a tapered valve plug 6, having a handle or finger piece 7. A housing surrounds the handle 7, said housing inclosing the device for operating the plug to turn the gas on or off. The housing comprises a top 8, a cylindrical side 9, and a bottom 10. To the top 8 are secured clamp ing members 11 which are arranged to engage opposite sides of the casing 5, and by means of screws 12 said members are clamped on the casing, whereby the housing is mounted in place. The top 8 of the lions ing has a central opening 13 to accommodate the handle 7, said openlng having a depending marginal flange 14. In the bottom 10 of the housing is a central circular opening 14 over which is mounted a rotary member comprising a plate 15 having a transverse slot 16 in which the handle 7 fits, said slot having marginal flanges 17 and 18, respectively, the former being on the top and the latter on the bottom of the plate. The bottom flange 18 extends into the opening 14 and works loosely therein to permit rotation of the plate. The ends of the plate carry rollers 19 which work in arcuate slots 20 in the part 10.

To the top of the plate 15 is made fast an arcuate ratchet member 21 having a slot 22 to accommodate a coiled spring 23, which is made fast at one end to said member and at the other end to the bottom 10 of the housing. The outer surface of the ratchet member has ratchet teeth 24 which are engageable by a pivoted springactuated pawl 25 carried by the part 10. The pawl projects through an aperture 26 in the part 9 to engage the teeth 24. A depending pull chain 27 is connected to the pawl for swinging the same out of engagement with the teeth 24.

To that end of the member 21 to which the spring 23 is anchored, is made fast a wire, cord or other flexible device 28 which is guided by the flange 14 to a guide pulley 29 mounted over an aperture 30 in the part 10, through which aperture said flexible device passes and below which it is connected to a depending pull chain 31.

The ratchet member 21 is fast on the plate 15 and the spring 23 tends to swing the latter in a direction to turn the plug 6 to closing position. Hence, the gas is normally shut off. To turn on the gas, the chain 31 is given a pull, whereby, through its connection 28 with the part 21, the plate 15 is swung to turn the plug 6 to open position. The pawl 25 rides over the teeth 24 during the last described movement of the part 15 and at the end of such movement it locks said part, whereby the plug 6 is locked in open position. To shut off the gas, the chain 27 is given a pull, which disengages the pawl and thus releases the part 21., allowing the spring 23 to swing the same and the part 15 back to return the plug to closed position. Thus, it will be seen that a pull on one chain turns on the gas, and a pull on the other chain automatically shuts off the same.

The device is very simple, and there are no complicated parts liable to get out of order, and it is therefore eflicient and reliable in operation.

I claim:

1. The combination with a gas cook and the handle thereof; of a housing carried by the cook, a rotary member in the housing and having a slot in which the aforesaid handle seats, a pull device connected to the rotary member, a spring connected to said member and tending to swing the same in one direction, a ratchet on the rotary member, a pawl engageable with said ratchetand pawl-disengaging means.

2. The combination with a gas cook and the handle thereof; of a housing carried by the cock, said housing having a circular bottom opening, a rotary member in the housing and having a slot in which the aforesaid handle seats, said slot having a marginal flange which extends into the aforesaid opening, a pull device connected to the rotary member, a spring connected to said member and tending to swing the same in one direction, a ratchet on the rotary member, a pawl engageable with said ratchet, and pawl-disengaging means.

3. The combination with a gas cook and the handle thereof; of a housing carried by the cock, a rotary member in the housing and having a slot in which the aforesaid handle seats, an arcuate ratchet member made fast to the rotary member, a pawl carried by the housing and engageable with the ratchet member, and a pull device and a spring connected to the ratchet member.

4:. The combination with a gas cook and the handle thereof; of a housing carried by the cock, a rotary member in the housing coupled to the aforesaid handle, a pull device connected to the rotary member, a spring connected to said member and tending to swing the same in one direction, a ratchet on the rotary member, a pawl engageable with said ratchet, and pawl-disengaging means.

5. The combination with a gas cook and the handle thereof; of a housing carried by the cook, a rotary member in the housing coupled to the aforesaid handle, a pull device connected to the rotary member, a spring connected to said member and tending to swing the same in one direction, a ratchet on the rotary member, a pawl engageable with said ratchet, pawl-disengaging means, and means carried by the housing for securing the same to the body of the gas cock.

In testimony whereof I affix my signature in presence of two witnesses.

BENJAMIN JENKINS.

WVitnesses FRANK D. Fawonr'r, HENRY SPALDING.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. G. 

